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US11628045B2 - Torque wrench for implant procedure - Google Patents

Torque wrench for implant procedure Download PDF

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Publication number
US11628045B2
US11628045B2 US16/832,662 US202016832662A US11628045B2 US 11628045 B2 US11628045 B2 US 11628045B2 US 202016832662 A US202016832662 A US 202016832662A US 11628045 B2 US11628045 B2 US 11628045B2
Authority
US
United States
Prior art keywords
torque wrench
gear
torque
rotor
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US16/832,662
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English (en)
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US20200323612A1 (en
Inventor
Hyung-Woo Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denflex Co Ltd
Original Assignee
Denflex Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020190152000A external-priority patent/KR20200119701A/ko
Priority claimed from PCT/KR2020/002672 external-priority patent/WO2020209494A1/ko
Application filed by Denflex Co Ltd filed Critical Denflex Co Ltd
Assigned to Denflex Co., Ltd reassignment Denflex Co., Ltd ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIM, HYUNG-WOO
Publication of US20200323612A1 publication Critical patent/US20200323612A1/en
Application granted granted Critical
Publication of US11628045B2 publication Critical patent/US11628045B2/en
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8875—Screwdrivers, spanners or wrenches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
    • B25B17/02—Hand-driven gear-operated wrenches or screwdrivers providing for torque amplification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A61B2090/031—Automatic limiting or abutting means, e.g. for safety torque limiting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06—Measuring instruments not otherwise provided for
    • A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
    • A61B2090/066—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension for measuring torque
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
    • A61C1/185—Drives or transmissions
    • A61C1/186—Drives or transmissions with torque adjusting or limiting means

Definitions

  • the present invention relates generally to a torque wrench for an implant procedure. More particularly, the present invention relates to a torque wrench for an implant procedure, wherein only a single torque wrench according to the present invention is necessary to first tighten a screw and finally firmly fasten the screw with a desired force or to first loosen the screw and finally completely remove the screw, even without the use of a separate hand driver.
  • An implant denotes a replacement for restoring lost human tissue.
  • the implant in general denotes a replacement that is used to restore the original function of a tooth by implanting and adhering a fixture in an alveolar bone from which a root of a natural tooth has been lost, connecting an abutment to the top of the fixture, and fixing a crown on the abutment.
  • an implant for a dental implant procedure the most common is a screw-type, in which an abutment and a fixture are fastened together by means of clamping force of a screw.
  • This screw-type implant is composed of a fixture, an abutment, and a prosthesis.
  • fastening or unfastening of the fixture and the abutment with the screw is performed by using both a separate hand driver and a conventional torque wrench for implant procedures that can firmly tighten a screw with a specific torque.
  • the torque wrench can be used only after a male screw is engaged to a corresponding female screw.
  • the torque wrench may not rotate properly and fail to fasten the screws. Due to this problem, when fastening with a screw, the screw has to be first tightened to a certain degree with the separate hand driver rather than the torque wrench, and then firmly tightened again with the torque wrench to prevent the screw from being loosened due to continuously applied masticatory pressure.
  • the screw has to be loosened with the torque wrench to a certain degree, and then finally the hand driver has to be used again for complete removal, which is a cumbersome process.
  • an objective of the present invention is to provide a torque wrench, wherein only a single torque wrench according to the present invention is necessary to first tighten a screw and finally firmly fasten the screw with a desired force or to first loosen the screw and finally completely remove the screw, even without the use of a separate hand driver, thereby making it possible to reduce discomfort that a patient has to open his/her mouth excessively during a procedure, or that an operator needs to use his/her hand to tighten the screw at a site where access is difficult.
  • Another objective of the present invention is to provide a torque wrench that is configured to enable a screw to be efficiently fastened and removed with only a single torque wrench, thereby enabling a more precise and stable procedure, as well as shortening a procedure time.
  • Still another objective of the present invention is to provide a torque wrench capable of eliminating cumbersome operation of having to provide a hand driver and a torque wrench at the same time and having to exchange the driver for the wrench during a procedure of fastening or removing a screw.
  • Still another objective of the present invention is to provide a torque wrench that does not require the use of a hand driver, thereby preventing the problem that a patient may swallow the hand driver.
  • a torque wrench for an implant procedure including: a first body part having a predetermined length, and including a head portion having an end to which a torque wrench driver bit is coupled; at least one second body part having a predetermined length, provided at one side of the first body part, and including a coupling portion formed in a longitudinal direction thereof; and a second shaft rotatably coupled to the coupling portion of the second body part, including a second gear provided at one end thereof and a knob provided at the other end thereof, and configured such that, in response to rotation of the knob, the second shaft transmits torque to the torque wrench driver bit through the first gear engaged with the second gear.
  • the first gear may be rotatably provided at an upper side of the torque wrench driver bit or at one side of the head portion of the first body part.
  • the first gear may be provided at an upper end of a rotor inserted into the fastening hole formed in the head portion, and a plurality of ratchet grooves may be formed in an outer surface of the rotor.
  • the torque wrench may further include a bar-shaped torque gauge provided at one side of the first body part.
  • the torque wrench may further include a protective cover protecting a portion where the first gear and the second gear are engaged with each other from being exposed externally.
  • the present invention is configured to enable a screw to be efficiently fastened and removed with only a single torque wrench, thereby enabling a more precise and stable procedure, as well as to shortening a procedure time.
  • FIG. 1 is a perspective view illustrating a torque wrench according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view illustrating the torque wrench according to the embodiment of the present invention.
  • FIG. 3 is a perspective view illustrating a torque wrench according to another embodiment of the present invention.
  • FIG. 4 is a perspective view illustrating a torque wrench according to another embodiment of the present invention.
  • FIG. 5 is an exploded perspective view illustrating the torque wrench according to the embodiment of the present invention.
  • FIG. 1 is a perspective view illustrating a torque wrench according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view illustrating the torque wrench according to the embodiment of the present invention.
  • a torque wrench for an implant procedure includes: a first body part 10 having a predetermined length, and including a head portion 16 in which a fastening hole 18 is formed at an end thereof to allow a torque wrench driver bit 30 to be detachably coupled thereto; at least one second body part 20 having a predetermined length, provided at one side of the first body part 10 , and including a coupling portion formed in a longitudinal direction thereof; and a second shaft 22 rotatably coupled to the coupling portion of the second body part 20 , including a second gear 24 provided at one end thereof and a knob 26 provided at the other end thereof, and configured such that, in response to rotation of the knob 26 , the second shaft transmits torque to the torque wrench driver bit 30 through the first gear 34 engaged with the second
  • the first body part 10 includes the head portion 16 in which the fastening hole 18 is formed at one end thereof, and the fastening hole 18 of the head portion 16 allows the torque wrench driver bit 30 to be detachably coupled thereto.
  • the first body part 10 may be configured such that the torque wrench driver bit is rotatable only in one direction by the operation of rotation direction control knobs 19 and 199 .
  • the at least one second body part 20 is provided at one side of the first body part 10 at a predetermined length along a longitudinal direction of the first body part 10 , with the coupling portion formed in the longitudinal direction thereof.
  • the coupling portion may be implemented in any form to which the second shaft can be rotatably coupled, preferably in the form of a hollow portion, and may be configured such that one side between opposite ends thereof is open externally.
  • the second shaft 22 is coupled to the coupling portion of the second body part 20 , and is configured such that, in response to rotation of the knob 26 provided at the other end thereof, the second shaft transmits torque to the torque wrench driver bit 30 fastened to the fastening hole 18 , through the second gear 24 formed at the end of the second shaft 22 and the first gear 34 engaged with the second gear 24 .
  • the first gear 34 is a first bevel gear
  • the second gear 24 is a second bevel gear.
  • the first and second gears may be implemented as worm gears.
  • FIGS. 1 and 2 illustrate that the first gear 34 is formed at an upper end of the torque wrench driver bit 30 , but the present invention is not limited thereto.
  • a gear with arbitrary position and structure the gear being capable of transmitting torque to the torque wrench driver bit 30 by engagement with the second gear 24 .
  • a hollow portion may be further formed in the first body part 10 in the longitudinal direction thereof, and the first shaft 12 formed such that a ratchet protrusion 14 protrudes at one end thereof is inserted into the hollow portion of the first body part 10 , and the ratchet protrusion 14 may be coupled to the torque wrench driver bit 30 so as to transmit torque thereto in one direction.
  • a plurality of ratchet grooves 32 are formed in an outer surface of the torque wrench driver bit 30 , so that the ratchet protrusion protruding at one end of the first shaft 12 may be coupled to the ratchet grooves 32 to enable one-way torque transmission.
  • the structure and shape of the torque wrench driver bit 30 and the fastening hole 18 may also be variously modified.
  • the other end of the first shaft 12 is provided with the rotation direction control knob 19 that can determine the rotation direction of the torque wrench
  • the other end of the second shaft 22 is provided with the knob 26 .
  • the provision of the rotation direction control knob 19 that can determine the rotation direction of the torque wrench may be eliminated.
  • the torque wrench driver bit fastened to the fastening hole of the torque wrench can be fastened in the reverse direction and then rotated.
  • the knob 26 is rotated to tighten the screw to a certain degree through the torque wrench driver bit, and then the rotation direction control knob 19 or the first body part 10 is rotated to rotate the torque wrench driver bit, thereby firmly fastening the screw. Furthermore, when removing the fastened screw, the rotation direction control knob 19 or the first body part 10 is rotated to release firm fastening, and then the knob 26 is rotated to completely remove the screw. Therefore, it is possible to first tighten the screw and finally firmly fasten the screw or to loosen the screw and completely remove the screw by using only a single torque wrench according to the present invention, even without the use of a separate hand driver tool.
  • a torque wrench for an implant procedure may be configured such that the above-described torque wrench driver bit 30 is integrally provided with the head portion 16 of the first body part 10 .
  • FIG. 4 is a perspective view illustrating a torque wrench according to another embodiment of the present invention
  • FIG. 5 is an exploded perspective view illustrating the torque wrench according to the embodiment of the present invention.
  • a first body part 110 includes a head portion 116 in which a fastening hole 118 is formed at one end thereof, a rotor 130 is integrally coupled to the fastening hole 118 of the head portion 116 so as to be rotatable, and a plurality of ratchet grooves 132 is formed in an outer surface of the rotor.
  • a first gear is formed at an upper end of the rotor.
  • At least one second body part 120 is provided at one side of the first body part 110 at a predetermined length, and includes a coupling portion formed in a longitudinal direction thereof and to which a second shaft 122 is coupled.
  • the coupling portion may be in the form of a hollow portion.
  • two second body parts 120 are configured such that respective hollow portions thereof are arranged along longitudinal directions thereof, but the present invention is not limited thereto. Therefore, it should be interpreted as a concept including all forms as long as the second shaft can be coupled to the coupling portion of the second body part so as to be rotatable, regardless of the number, length and structure of the second body part.
  • the second shaft 122 is rotatably coupled to the coupling portion of the second body part 120 , and is configured such that, in response to rotation of a knob 126 provided at the other end thereof, the second shaft transmits torque to the rotor 130 and/or a torque wrench driver bit 160 fastened to the fastening hole 118 , through a second gear 124 formed at one end of the second shaft 122 and the first gear 134 engaged with the second gear 124 .
  • the rotor 130 may be rotatably coupled to the fastening hole 118 by a fixing piece 136 .
  • the first gear 134 is formed at the upper end of the rotor 130
  • the torque wrench driver bit 160 is fitted to the rotor 130 .
  • the first gear 134 is coupled to the second gear to transmit torque to the torque wrench driver bit 160 .
  • FIGS. 4 and 5 illustrate a structure in which torque is transmitted to the torque wrench driver bit 160 via the rotor 130 .
  • the present invention is not limited thereto. Therefore, it should be apparent for those skilled in the art that the first gear 134 can be modified and applied to the head portion 116 of the first body part 110 in various shapes and/or structures.
  • the present invention further includes a protective cover 150 protecting a portion where the first gear 134 and the second gear 124 are engaged with each other from being exposed externally. This is to prevent foreign substances or the like from being introduced into the gap between the gears during the procedure, resulting in malfunction or danger.
  • the present invention further includes a shaft cover 140 provided at an upper side of the second body part 120 to prevent the second shaft 122 from being exposed externally.
  • the present invention may further include bar-shaped torque gauges 40 and 170 provided at one sides of the first body parts 10 and 110 , respectively.
  • the bar-shaped torque gauges may be implemented in a curved shape.
  • the present invention should not be limited to specific structures of the embodiments.
  • the present invention may provide a torque wrench without the structure of the rotation direction control knob 19 in which the rotation direction of the torque wrench can be changed without changing the direction of fastening the torque wrench driver bit to the fastening hole.
  • the structure of the fastening hole may be variously modified.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Mechanical Engineering (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Dental Prosthetics (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US16/832,662 2019-04-10 2020-03-27 Torque wrench for implant procedure Active 2041-01-11 US11628045B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR10-2019-0041977 2019-04-10
KR20190041977 2019-04-10
KR10-2019-0152000 2019-11-25
KR1020190152000A KR20200119701A (ko) 2019-04-10 2019-11-25 임플란트 시술용 토크렌치
PCT/KR2020/002672 WO2020209494A1 (ko) 2019-04-10 2020-02-25 임플란트 시술용 토크렌치

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2020/002672 Continuation WO2020209494A1 (ko) 2019-04-10 2020-02-25 임플란트 시술용 토크렌치

Publications (2)

Publication Number Publication Date
US20200323612A1 US20200323612A1 (en) 2020-10-15
US11628045B2 true US11628045B2 (en) 2023-04-18

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ID=72748950

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/832,662 Active 2041-01-11 US11628045B2 (en) 2019-04-10 2020-03-27 Torque wrench for implant procedure

Country Status (5)

Country Link
US (1) US11628045B2 (es)
EP (1) EP3954322B1 (es)
JP (1) JP2022528257A (es)
CN (1) CN113873966A (es)
ES (1) ES3033667T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240197451A1 (en) * 2021-06-07 2024-06-20 Screweasy S.L. Device for screwing in dental implants

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD964128S1 (en) * 2019-06-13 2022-09-20 M3 Health Indústria E Comércio De Produtos Médicos, Odontológicos E Correlatos S.A. Prosthetic torque wrench
JP1666452S (es) * 2019-08-03 2020-08-24
US11628005B2 (en) 2020-12-03 2023-04-18 Metal Industries Research & Development Centre Tool for bone implant
JP7132549B2 (ja) * 2020-12-15 2022-09-07 財團法人金屬工業研究發展中心 骨インプラント用工具

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733936A (en) * 1971-06-18 1973-05-22 W Flynn Master ratchet with quick action dual drive
US5626474A (en) * 1995-06-28 1997-05-06 Kukla; Thomas S. Implant torque wrench
US5734113A (en) * 1994-09-27 1998-03-31 Institut Straumann Ag Surgical torque wrench with a torque indicator
KR200300718Y1 (ko) 2002-10-01 2003-01-14 (주) 코웰메디 임플란트시술용 토크렌치
US20070281274A1 (en) * 2006-06-05 2007-12-06 Allan Schraffran Dental wrench and method of use thereof
KR100948726B1 (ko) 2008-02-13 2010-03-22 문현일 임플란트 시술용 토크렌치
KR20140003885U (ko) 2012-12-14 2014-06-24 김범익 치과용 토크 렌치 관절부 보호 덮개
US9539043B2 (en) * 2013-03-13 2017-01-10 Ebi, Llc Screw driver, combination, and related methods

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Publication number Priority date Publication date Assignee Title
US4532832A (en) * 1983-10-03 1985-08-06 Christensen Wendell N Dual-mode ratchet wrench
US5226906A (en) * 1991-02-13 1993-07-13 Howmedica, Inc. Surgical speed wrench
US7100476B1 (en) * 2006-02-01 2006-09-05 Feit Steven H Torque wrench for dental implants
DE102014106873B4 (de) * 2014-05-15 2016-12-08 Heraeus Medical Gmbh Vorrichtung und Verfahren zum Mischen eines Mehrkomponentenzements

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733936A (en) * 1971-06-18 1973-05-22 W Flynn Master ratchet with quick action dual drive
US5734113A (en) * 1994-09-27 1998-03-31 Institut Straumann Ag Surgical torque wrench with a torque indicator
US5626474A (en) * 1995-06-28 1997-05-06 Kukla; Thomas S. Implant torque wrench
KR200300718Y1 (ko) 2002-10-01 2003-01-14 (주) 코웰메디 임플란트시술용 토크렌치
US20070281274A1 (en) * 2006-06-05 2007-12-06 Allan Schraffran Dental wrench and method of use thereof
KR100948726B1 (ko) 2008-02-13 2010-03-22 문현일 임플란트 시술용 토크렌치
KR20140003885U (ko) 2012-12-14 2014-06-24 김범익 치과용 토크 렌치 관절부 보호 덮개
US9539043B2 (en) * 2013-03-13 2017-01-10 Ebi, Llc Screw driver, combination, and related methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240197451A1 (en) * 2021-06-07 2024-06-20 Screweasy S.L. Device for screwing in dental implants

Also Published As

Publication number Publication date
EP3954322A4 (en) 2022-12-14
JP2022528257A (ja) 2022-06-09
US20200323612A1 (en) 2020-10-15
EP3954322B1 (en) 2025-04-02
CN113873966A (zh) 2021-12-31
EP3954322A1 (en) 2022-02-16
ES3033667T3 (en) 2025-08-06

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